Finding the Fourth Proportional to 335,351,927.20, 502,889,905.68 and 128,166,861.28
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Solution
The fourth proportional to 335,351,927.20, 502,889,905.68 and 128,166,861.28 is: 192,197,555.92
Step by Step Solution
- Step 1: Write the proportion equation
335,351,927.20 : 502,889,905.68 = 128,166,861.28 : x - Step 2: Convert to fraction form
335,351,927.20/502,889,905.68 = 128,166,861.28/x - Step 3: Cross multiply
335,351,927.20x = 502,889,905.68 × 128,166,861.28 - Step 4: Simplify right side
335,351,927.20x = 64,453,820,780,400,848 - Step 5: Solve for x
x = 64,453,820,780,400,848/335,351,927.20 - Step 6: Final answer
x = 192,197,555.92
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.